html,
body {
    position: relative;
    height: 100%;
}

body {
    background: #eee;
    font-family: Helvetica Neue, Helvetica, Arial, sans-serif;
    font-size: 14px;
    color: #000;
    margin: 0;
    padding: 0;
}

.swiper-container {
    width: 100%;
    height: 100%;
}

.swiper-slide {
    background-position: center;
    background-size: cover;
    /* background-repeat: no-repeat; */
}

* {
    padding: 0;
    margin: 0;
}

body {
    position: absolute;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: url(../images/lyy-bg1.jpg) no-repeat;
    background-size: cover;
    opacity: 1;
    transition: opacity 2s;
}

.container {
    position: relative;
    top: -100%;
    width: 1200px;
    margin: 0 auto;
    z-index: 999;
}

.w {
    width: 1200px;
    margin: 0 auto;
}

/* 头部 */

.header {
    position: relative;
    height: 80px;
    border-bottom: 1px solid hsla(0, 0%, 100%, .1);
}

.header .logo {
    float: left;
    position: absolute;
    top: 25px;
    height: 27px;
    width: 142px;
    background: url(../images/lyy-nav_pic.png) 0 0;
    background-size: 142px 65px;
}

.nav {
    float: right;
}

.nav>li {
    position: relative;
    float: left;
    width: 150px;
    height: 80px;
    line-height: 80px;
    text-align: center;
}

.nav>li>a {
    display: block;
    height: 80px;
    font-size: 17px;
    color: #fff;
}

.nav>li i {
    display: inline-block;
    width: 12px;
    height: 12px;
    background: url(../images/lyy-nav_pic.png)-74px -43px;
    transition: all .3s;
}

.nav>li:hover i {
    transform: rotate(180deg);
}

.nav ul {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background-color: #fff;
    border-radius: 5px;
}

.nav>li ul li {
    height: 40px;
    line-height: 40px;
}

.nav ul li a {
    display: inline-block;
    height: 40px;
    line-height: 40px;
    color: black;
}

.nav ul li a:hover {
    color: red;
}

/* 主体模块 */

.main {
    height: 480px;
    /* background-color: skyblue; */
    padding: 50px 0 0 70px;
}

.main .pic_1 {
    width: 200px;
    height: 50px;
}

.main .pic_1 img {
    width: 100%;
}

.main .pic_2 {
    width: 320px;
    height: 230px;
}

.main .pic_2 img {
    width: 320px;
}

.main a {
    position: relative;
    display: inline-block;
    width: 154px;
    height: 45px;
    line-height: 45px;
    background-color: #fff;
    border-radius: 5px;
    margin: 50px 5px 0;
}

.main a span {
    display: inline-block;
    font-size: 16px;
    color: black;
    text-align: center;
    margin-left: 30px;
}

.main .more {
    width: 50px;
    height: 45px;
    font-size: 16px;
    color: black;
    text-align: center;
}

.main .app .app_icon,
.main .android .android_icon {
    display: inline-block;
    background: url(../images/lyy-nav_pic.png) 0 -47px;
    height: 18px;
    width: 18px;
    margin: 12px 0 0 16px;
    vertical-align: -3px;
}

.main .window .window_icon {
    display: inline-block;
    background: url(../images/lyy-nav_pic.png) -38px -47px;
    height: 18px;
    width: 18px;
    margin: 12px 0 0 16px;
    vertical-align: -3px;
}

.main .code {
    opacity: 0;
    transition: opacity .5s;
    position: absolute;
    top: 47px;
    left: 0;
    display: inline-block;
    background: url(../images/lyy-sprite.qrcode.png)-173px -173px;
    height: 153px;
    width: 153px;
    background-size: 499px 326px;
    border-radius: 5px;
}

.main>a:hover .code {
    opacity: 1;
}

/* 尾部模块 */

.footer {
    /* height: 110px; */
    text-align: center;
    color: #fff;
    /* margin-top: 50px; */}

.about {
    width: 700px;
    margin: auto;
}

.link {
    float: left;
    margin-bottom: 20px;
}

.link a {
    margin: 5px;
    color: #fff;
}

.icon {
    float: right;
}

.icon a i {
    display: inline-block;
    width: 13px;
    height: 13px;
    margin: 0 10px;
    background: url(../images/lyy-weibo.png) no-repeat;
    background-size: cover;
}

.icon a:nth-child(2) i {
    background: url(../images/lyy-weixin.png) no-repeat;
    background-size: cover;
}

.icon a:nth-child(3) i {
    background: url(../images/lyy-qq.png) no-repeat;
    background-size: cover;
}

.icon a:nth-child(4) i {
    background: url(../images/lyy-youxiang.png) no-repeat;
    background-size: cover;
}

.footer p {
    margin-bottom: 10px;
}

.footer p a {
    color: #fff;
}

.footer p i {
    display: inline-block;
    width: 60px;
    height: 30px;
    background: url(../images/lyy-ad.png) no-repeat;
    background-size: contain;
    vertical-align: middle;
    margin-left: 6px;
}